US Patent No: 5,049,901

Number of patents in Portfolio can not be more than 2000

Light modulator using large area light sources

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Abstract

A light modulator capable of using large area light sources consists of a light source such as an arc lamp imaged on a two dimensional light valve, preferably of the deformable mirror type. The light valve is imaged onto a light sensitive material and this image is scanned along the light sensitive material. The information to be imaged on the light sensitive material is entered into the first row of the light valve and as the image of the light valve is scanned along the material, the information in the first row is transferred to subsequent rows at a direction and rate keeping the imaged data stationary relative to the exposed material. By using a large number of rows, high light collection efficiency, high resolution and high data rates can be achieved at the same time. This overcomes the low brightness limitations of large area light sources such as arc lamps and incandescent lamps.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CREO PRODUCTS INC.BURNABY BRITISH COLUMBIA28
KODAK GRAPHIC COMMUNICATIONS CANADA COMPANYBURNABY BRITISH COLUMBIA136

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gelbart, Daniel Vancouver, CA 159 1951

Cited Art

Patent Info (Count) # Cites Year
 
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TEXAS INSTRUMENTS INCORPORATED (1)
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XEROX CORPORATION (1)
4,560,994 Two dimensional electro-optic modulator for printing 20 1984

Patent Citation Ranking

Forward Cites

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